Needle-bed for straight-frame and circular-knitting machines.



L v No. 871,095.

PATENTED NOV. 12, 1907.

- H. A. KLEMM. NEEDLE BED I'OR STRAIGHT FRAME AND CIRCULAR KNITTINGMACHINES.

APPLICATION FILED AUG. 29, 1907.

I N M 5 2 9 In ventor':

J9. Mmvm Atty PATENTED NOV. '12, 1907.

H. A. KLEMM.

NEEDLE BED FOR STRAIGHT FRAME AND CIRCULAR KNITTING MACHINES.

APPLICATION IILBD AUG. 29, 1907.

2 SHEETSSHEE.T 2.

Inventor:

' FIG.5.'

FIGJ.

, UNITED STAEEEIENT OFFICE.

HERMANN A. KLEMM, OF NEW YORK, N. Y.,'ASSIGNOR OF ONE-HALF TO JAMES D.LEYS, OF YONKERS, NEW YORK.

NEEDLE-BED FOR STRAIGHT-FRAME AND CIRCULAR-KNITTING MACHINES.

Specification of Letters Patent.

Patented Nov. 12, 1907.

Continuation of application Serial No. 334,849, filed September 171906.This application filed August 29.1907. Serial No. 390.625.

To all whom it may concern:

Be it known that I, HERMANN A. KLEMM, a citizen of the United States ofAmerica, residing in the borough of Bronx, city and State of New York,have invented certain Improvements in Needle-Beds for Straight- Frameand Circular-Knitting Machines, of which the following is aspecilication.

The purpose of this invention is to provide a needle bed forindependently reciprocating needles-either spring or latch-4n which thegrooves may be closer together than has heretofore been practicable. Thenumber of needle grooves has been limited by the thickness of wallsrequired to resist lateral strains imposed by the operating cams uponthe butt ends oi the needles. According to this invention long and shortgrooves, to receive long and short needles, are arranged in alternationand wall strengthening lilling pieces are inserted over the needles inthe front parts of the long grooves opposite those parts of the shortgrooves traverse'd by the butts oi the short needles.

In the drawing, Figure 1 represents a plan view of a portion of a needlebed with some of the needles therein, adapted for use in connection withthe straight frame knitting machine and adapted for the production ofso-ealled Swiss-rib underwear; Fig. 2 is a view similar to Fig. 1,showing a dial needle bed adapted for use in connection with a circularknitting machine; Figs. 3

and 4 are sectional views taken respectively on the lines A, B and O, D,of Fig. 1; Figs. 5, 6 and 7 are similar ,views showing the needles, longand short, equally spaced, the latter figure being a section on line E,F, of Fig. 5.

a designates a needle bed which may be cylindrical, straight or circulardial in form, as required, and b, c designate grooves therein for thereception of the neodles d and e respectively.

In the particular embodiment of this invention which Figs. 1 to 4 of thedrawing illustrates, the needle grooves are arranged in pairs eachcomprising a short groove 0 and a long groove b. The division wall fbetween grooves b and c of a pair is relatively thin or narrow, Whilethe walls 9 between the pairs of grooves are relatively, thick or wide.

To strengthen the thin dividing walls of the needle grooves to resistlateral strains imposed by the operating cams upon the butt-end portionsof the short needles, lilling pieces h are iitted between the walls ofthe grooves 0 over the front portions of the long needles. The fillingpieces are preferably approximately the length-of the short grooves asshown in Fig. 3, but however that may be, they should be opposite thoseparts of the short grooves traversed by the butts of the short needles.

The lilling pieces h, are so litted as to provide a space between themand the lower surface of the needle grooves c, to admit of the free andready insertion or withdrawal of the long needles from the rear, and inorder that both the long and short needles shall be socurely heldagainst displacement, during the operation of knitting, I may providekeepers 11,111 the form oi bars adapted to rest over and upon the needleshanks. These keepers may be arranged to lit in guides j formed atintervals across the upper face of the needle bed, or other convenientmeans may be employed to keep them in position, such as may suggestthemselves to those skilled in the art.

II the alternating long and short grooves were equally spaced thefilling pieces would serve to reinforce the walls and it is thereforel'easible to make them thinner than has heretofore been deemedpracticable. Such a construction is shown in Figs. 5, G and 7, thelatter being on an enlarged scale.

I claim:

1. A needle bed having in alternation long and short needle grooves andfilling pieces in the long grooves opposite the parts of the shortgrooves traversed by the butts of the short needles.

'2. A needle bed for knitting machines having long and short needlegrooves for the reception of long and short needles, said needle groovesbeing arranged in sets or pairs comprising one long and one shortgroove, a narrow dividing wall arranged on the bed for separating eachlong and short needle in each set or pair of needles, and a wider wallseparating the needles comprised in each set or pair, and filling piecesadapted to fit in between the narrow and strengl licned.

In testimony whereof,

name.

I have hereunto subscribed my IIERMANN A. KLEMM.

Witnesses L. l BROWNING, E. 1 Wrens.

